28407120

Names of 28407120

• Cardinal: 28407120 can be written as Twenty-eight million, four hundred seven thousand, one hundred twenty.

Scientific notation

• Scientific notation: 2.840712 × 10⁷

Factors of 28407120

• Number of distinct prime factors ω(n): 6
• Total number of prime factors Ω(n): 9
• Sum of prime factors: 511

Divisors of 28407120

• Number of divisors d(n): 160
• Complete list of divisors:
  1 2 3 4 5 6 7 8 10 12 14 15 16 20 21 24 28 30 35 37 40 42 48 56 60 70 74 80 84 105 111 112 120 140 148 168 185 210 222 240 259 280 296 336 370 420 444 457 518 555 560 592 740 777 840 888 914 1036 1110 1295 1371 1480 1554 1680 1776 1828 2072 2220 2285 2590 2742 2960 3108 3199 3656 3885 4144 4440 4570 5180 5484 6216 6398 6855 7312 7770 8880 9140 9597 10360 10968 12432 12796 13710 15540 15995 16909 18280 19194 20720 21936 25592 27420 31080 31990 33818 36560 38388 47985 50727 51184 54840 62160 63980 67636 76776 84545 95970 101454 109680 118363 127960 135272 153552 169090 191940 202908 236726 253635 255920 270544 338180 355089 383880 405816 473452 507270 591815 676360 710178 767760 811632 946904 1014540 1183630 1352720 1420356 1775445 1893808 2029080 2367260 2840712 3550890 4058160 4734520 5681424 7101780 9469040 14203560 28407120
• Sum of all divisors σ(n): 103588608
• Sum of proper divisors (its aliquot sum) s(n): 75181488
• 28407120 is an abundant number, because the sum of its proper divisors (75181488) is greater than itself. Its abundance is 46774368

Bases of 28407120

• Binary: 1101100010111010101010000₂
• Hexadecimal: 0x1B17550
• Base-36: GWV2O

Squares and roots of 28407120

• 28407120 squared (28407120²) is 806964466694400
• 28407120 cubed (28407120³) is 22923536441123824128000
• The square root of 28407120 is 5329.8330180223
• The cube root of 28407120 is 305.1235547073

Scales and comparisons

• 28,407,120 seconds is equal to 46 weeks, 6 days, 18 hours, 52 minutes.
• To count from 1 to 28,407,120 would take you about eighteen weeks!

  This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)

• A cube with a volume of 28407120 cubic inches would be around 25.4 feet tall.

Recreational maths with 28407120

• 28407120 backwards is 02170482
• 28407120 is a Harshad number.
• The number of decimal digits it has is: 8
• The sum of 28407120's digits is 24
• More coming soon!